Clinical trials
Control clinical trials
Below are recruiting control clinical trials, each written for real people, not researchers. We’re tracking 3,039 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04699747RecruitingPhase 1
MRI and PET scan study for multiple sclerosis brain changes
This Phase 1 study tests a special tracer used during MRI and PET scans to look at brain changes in people with multiple sclerosis. It’s mainly aimed at improving how these scans can detect disease-related changes and confirming the tracer works safely.
Boston, MassachusettsAges 18–65 - NCT04700527RecruitingPhase 1/Phase 2
SCFA supplements during belly/pelvis radiation for cancer
This early-phase study tests whether an SCFA (fatty-acid) supplement can improve how patients tolerate radiation to the abdomen or pelvis. Participants are randomly assigned to receive the supplement or a comparison treatment, while they receive their planned radiation.
Chapel Hill, North CarolinaAges 18 years+ - NCT04704297RecruitingPhase 4
Trigger point shots for low back muscle pain
This trial tests whether injecting sore “trigger points” in low back muscles helps improve chronic low back pain. It compares treatments in people with specific low back muscle pain patterns and excludes several other causes of pain.
Tacoma, WashingtonAges 18 years+ - NCT04719026Recruiting
Teeth and heart attack link in people with or without heart attacks
This study compares dental health in people who were recently admitted for a heart attack with similar people who have not had a heart attack. It aims to see whether gum and dental health might be related to heart attack risk.
AberdeenAges 20–90 - NCT04722341Recruiting
Time-limited eating for people with certain breast or rectal cancers
This study tests whether eating only within a shorter daily time window can improve cancer outcomes in people with specific breast or rectal cancers. It also looks at how this affects the body (such as metabolism) and who is most likely to benefit.
Birmingham, AlabamaAges 18 years+ - NCT04735172Recruiting
Brain scan to compare Parkinson chemical signals in early patients
This study uses a special 7‑Tesla MRI brain scan to measure tiny chemical (metabolite) differences in specific deep brain areas. It compares newly diagnosed, early-stage Parkinson’s patients who are not on Parkinson medication with healthy volunteers.
Clermont-FerrandAges 18–75 - NCT04735458Recruiting
Brain network study for Parkinson’s or essential tremor
This study looks at how “inhibitory control” brain networks work in people with Parkinson’s disease or essential tremor. If you are eligible for surgery and can do the study tasks, your results may help researchers better understand movement disorders and guide future treatments.
Birmingham, AlabamaAges 18 years+ - NCT04765514RecruitingPhase 2
Chemo with radiation versus chemo alone for older brain tumor patients
This trial compares two standard treatments for newly diagnosed glioblastoma (a serious brain cancer) in older and frail patients: chemo plus radiation versus chemo alone. It may help determine which approach works best and is safest for people in your age and health group.
Calgary, AlbertaAges 65 years+ - NCT04765098RecruitingPhase 2
Tamoxifen or Etoposide for recurring brain tumor after prior treatment
This trial tests whether tamoxifen works as well as etoposide in people whose glioblastoma has come back after standard chemotherapy and radiation with temozolomide. It aims to find a better medication option for controlling the tumor after the first return.
Edmonton, AlbertaAges 18–65 - NCT04771728RecruitingPhase 4
Probiotics added to treatment for bacterial vaginosis
This study tests whether adding probiotics to standard care helps treat bacterial vaginosis (BV) and possibly lowers the chance of it coming back. You would be placed into a study group to compare probiotic treatment with the other approach.
Shenzhen, GuangdongAges 18–55 - NCT04783454Recruiting
Preventing neck and back pain in teleworkers
This study tests ways to prevent neck and back pain in people who work at a computer from home or an office. If you qualify, you may be assigned to an intervention aimed at reducing pain and improving comfort.
Ghent, East FlandersAges 18–69 - NCT04785443RecruitingPhase 3
Check whether dye-guided imaging helps find parathyroid glands
This study tests whether using a special camera with a fluorescent dye (called ICG angiography) during total thyroid surgery can help doctors find the parathyroid glands more reliably. It aims to lower the risk of “low parathyroid hormone,” which can lead to low calcium after surgery.
BrestAges 18 years+ - NCT04788524Recruiting
Brain and stress study in depressed teens with control feelings
This study uses brain scans and short real-life mood/stress check-ins to understand how stress and perceived control work in teens with depression. It may help researchers better pinpoint brain patterns linked to depression and how teens experience control during stressful moments.
Belmont, MassachusettsAges 14–18 - NCT04789616RecruitingPhase 2
Maraviroc plus stroke rehab to improve recovery
This study tests whether maraviroc (or a placebo) given soon after an ischemic stroke can improve how well people recover with inpatient rehabilitation. It may help some stroke survivors regain arm and/or leg function faster with the usual rehab therapies.
Calgary, AlbertaAges 18 years+ - NCT04804384Recruiting
Testing a brain-controlled hand device after a stroke
This study tests whether a “closed-loop” neuroprosthesis (a hand-control device that responds to your movement) can improve hand grasping after a stroke. It may help people who cannot open or grab objects on their own, and who can safely participate during a short hospital stay.
ToulouseAges 18 years+ - NCT04813159Recruiting
Remote heart preconditioning for people with blocked-heart-attack
This study tests whether a remote, arm-based treatment done around the time of a heart attack can improve outcomes in people with STEMI (a serious heart-attack type). Some participants receive the real treatment and some receive a sham version, while others may be followed observationally depending on how long ago symptoms started.
Mombasa, Mombasa CountyAges 18 years+ - NCT04816994RecruitingPhase 3
Cannabis extract for nerve back pain and painkiller needs
This trial studies whether a cannabis extract can reduce acute nerve-related pain in the back and lessen how much pain medication you need. It may help people with a short-term episode of “shooting” nerve pain from the spine.
JerusalemAges 18–70 - NCT04825847Recruiting
Testing brain changes after major surgery in older adults
This study looks at how memory and thinking change after major surgery in people age 70 and older. It may help doctors understand who is at risk and how to reduce problems with thinking after surgery.
Montreal, QuebecAges 70 years+ - NCT04831060Recruiting
Study of inflammation in gum and implant disease
This trial studies people with advanced gum disease (periodontitis) or gum inflammation around dental implants (peri-implantitis), and compares them with people who have healthy gums. The goal is to understand inflammation and how it relates to these dental conditions.
Ivry-sur-SeineAges 18 years+ - NCT04831385Recruiting
CBT-I sleep therapy to improve blood sugar in older adults
This study tests whether a structured therapy for insomnia (CBT-I) can help improve blood sugar control in older adults with type 2 diabetes. It targets people who have both high blood sugar levels and troublesome insomnia, aiming to see if better sleep improves glycemic measurements.
Hong KongAges 60 years+ - NCT04842006Recruiting
Personalized treatment plan for rectal cancer before and after surgery
This trial looks at a personalized treatment approach for rectal cancer. It aims to guide the best chemotherapy and (if needed) radiotherapy before and after surgery, based on scans and specific test results.
Helsinki, UusimaaAges 18–100 - NCT04842162RecruitingPhase 2
Near-infrared dye imaging to help remove all mouth/throat cancer
This Phase 2 study tests a special camera and dye during surgery to help surgeons confirm they removed all cancer at the edge of the removed tissue. If it works, it may lower the chance of cancer being left behind after oral cavity or oropharynx squamous cell cancer surgery.
AnderlechtAges 18 years+ - NCT04882904Recruiting
Tracking movement in people with ALS and healthy volunteers
This study continuously measures activity and movement in people with ALS and in control participants. It aims to better understand how muscle disease changes day-to-day function, which may help improve future monitoring or care.
Liège, LiègeAges 18 years+ - NCT04885322Recruiting
Brain stimulation trial for attention and thinking control
This study tests whether a non-painful brain stimulation method (tDCS) can improve attention and “thinking control,” and how brain activity changes during tasks. It also uses brain imaging (MRI), so safety and comfort conditions must be met.
Sacramento, CaliforniaAges 18–50
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Common questions
- Are there clinical trials for control?
- Yes. Clin2 currently lists 3,039 recruiting control studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a control trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a control trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.